Hello, we are currently using two systems for our subscriptions and we would like to condense them all into Zoho Subscriptions. The problem is the people using our old system get paper bills in the mail and we would like to keep it that way. There are not that many people in the old system so I can just manually enter them. I also created another field in our form that is a checkbox saying USPS Customer to differentiate between the two. I would like to be able to setup so when an invoice is created it sends an email if that box is checked automatically. I can do the rest from there. Thank you for your time.